diff --git a/static/html/chat_page.html b/static/html/chat_page.html
index bf00a7d..23266e8 100644
--- a/static/html/chat_page.html
+++ b/static/html/chat_page.html
@@ -253,9 +253,9 @@
                     content.name = guest.name;
                     content.is_kefu = true;
                     content.time = this.getNowDate();
-                    this.msgList.push(content);
-                    this.saveHistory(content);
-                    this.scrollBottom();
+                    _this.msgList.push(content);
+                    _this.saveHistory(content);
+                    _this.scrollBottom();
                 });
 
             },